Jean
Xavier
Emma
Rachel
Psylocke
Sinister
Exodus
Cassandra Nova
Quentin Quire
Legion
Shadow King
Other
Besty and Rachel are almost equals but Besty has been portrayed better on multiple occasions (Rachel asking her to do stuff telepathically on different occasions). Besty was also the one fighting Shadowking on multiple occasions while Phoenix Rachel had trouble with him
When I say overrated I mean as in. I've heard arguments that she's on chuck's level but with her having trouble shutting thor down with the phoenix force while chuck did it casually is kinda sus.
Not seing how Betsy is Rachel's equal when Rachel has several feats against other telepaths, she even one shotted Betsy before after one shotting Storm and Magik as well
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I even dare to say that currently Rachel after training from Emma, a comment of her increased power and skill by Xavier, the gold sentinel amp and maybe the mother askani amp, she might be able to beat Emma.
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Besty also oneshotted Rachel before lol
But what I am trying to say is every X Telepathy has been lowballed or getting favored by a specific writer.
Of f*** I forgot to put apocalypse on the list ffs.
C tier or maybe low B With his recent excalibur feats.